[96z28ss]

Since you don't have updated pictures do you have a real good idea of how far along the car is?
I would suggest getting the car and bring it home and going thru the car and see if its what you expected.
Then decide from there who to take the car to.
The new shop might not like the workmanship that was done at the previous shop and you may have to back track things abit which will cost you time and money.

I'd give the guys at Bruning Auto Design a call and see what they have to say. You might want to take your car up there.